Any customers who received and Air Travel Organisers' Licensing (ATOL) certificate when booking with the now bust Student Adventures travel company are protected for the money they paid directly to the company, according to the Civil Aviation Authority.
They said that GBCE, Student Adventures parent company held an ATOL certificate until March 31 this year.
They added: "Consumers who received an ATOL certificate when booking are protected for any money they paid directly to the company."
"We understand there are approximately 100 consumers currently abroad, but these people will have scheduled airline tickets so will be able to travel home as planned. We are looking into the impact on forward bookings and will publish advice for consumers who are yet to travel shortly."
More top news
Uplifting messages greeted commuters on the London Underground a day after the terror attack in Westminster.
Faith leaders from across London say religious communities will "stand together" in the wake of the Westminster terror attack.
Pc Keith Palmer was among the three people killed yesterday in the Westminster terror attack.